Multi-channel pipetter



FIG. 1 is front elevational view of a multi-channel pipetter showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a left end elevational view thereof;

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a multi-channel pipetter, as shown. 